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Foam Stop Off offers a fast, efficient method of shutting down distribution mains for a wide range of maintenance
applications and mains abandonment projects. Foam Stop Off is more than a foam, it is a shutdown system that is purpose
built for natural gas industry maintenance operations.
In its standard form, Foam Stop Off shutdowns are achieved by introducing a special fabric bag into a main, either using a
standard open-hole technique, or using an ALH Gas-Free tapping system. Foam is mixed in a plastic container, poured into
a special timed release cartridge gun and pumped into the Foam Stop Off. The foam swells to fill the bag and then oozes
out through the special semi-porous surfaces of the bag to roll any fluids, including water, out of the way. It then
combines with any loose debris and bonds to the pipe walls. This produces a 100% shutdown in a predetermined short length
of main in less than 30 minutes.
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- Foam Stop Off uses dramatically different foam from any previously supplied to the gas industry.
- The system facilitates mains shutdowns when used in combination with PLCS Stop-Off Bags.
- Foam Stop Off provides sectioning for dead insertion during upgrade projects.
- Foams offer control of PCBs in abandoned mains.
- Close tolerance branch main abandonment shutdowns.
- Foams provides sectioning during Lyontec Live Mains Insertion. (Call for additional informatio
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